Chapter 1618: Genuine curve overtaking (below)

Science and technology have developed to the present. If Sir Newton is hit by an apple in the head, the era when he can make great discoveries in a flash has passed. Every breakthrough in modern technology is the crystallization of teamwork. Some breakthroughs , And even need to mobilize huge social resources, the basic industrial capacity of the entire country needs to have a high level and be able to mobilize for the same goal.
For example, "China Commercial Aircraft Corporation" is developing C929, such as the "Flying Leopard B" that Xijing has promoted for many years; for example, there is a baby arm-sized gadget in front of Tan Zhenhua. T/R components.
T/R is the abbreviation of TransmitterandReceiver. The T/R component usually refers to the part between the intermediate frequency and the antenna in a wireless transceiver system. One end is connected to the antenna and the other end is connected to the intermediate frequency processing unit to form a wireless transceiver system. Its function is to amplify and shift the signal. ,attenuation.
It can be seen that a typical T/R component should generally include two branches: receiving and transmitting. The unit circuit should include: local oscillator, up-down conversion, filter, low-noise amplifier, power amplifier, duplex circuit, etc.
Well, let's translate the above paragraph into adult words-a typical T/R component is a small transmitting and receiving system.
To be simpler, if you add a back-end signal processing system and auxiliary systems such as power supply and display to a T/R component, it is a small radar!
So what is the power of this small radar?
Tan Zhenhua has this T/R based on gallium arsenide material with a power of 3W.
Some students will definitely think that a 3W radar can be used as wool...
However, you have to know that T/R modules can be connected in parallel!
Then, if you connect 1,000 or more 3W power components in parallel, you can get a transmitting and feeding radar antenna array with a maximum power of more than 3KW!
And this is the basic configuration of active phased array radar AESA.
Such a radar working in the X-band can hide targets within 150 kilometers!
Compared with all previous systems of radars, including passive phased array radars, active phased array AESA radars have unparalleled advantages. For example, it is born with a shifter, so it can be considered that all AESA It is naturally a three-coordinate radar; for example, since all the transmitting/receiving systems work in parallel, the failure of a local T/R component will not cause the entire radar to lose its working ability, but only a part of its performance. However, repairs only need to replace the damaged components. This is a very important performance in actual combat; for example, because the AESA antenna array element is directly connected to the power source, the performance of the radar is not affected by the feed and shift. The overall performance has been greatly improved due to the loss of the phaser, and the sensitivity is far superior to other radars; for example, because AESA can cancel the mechanical rotation part and use electrical signals to control the scanning angle, its data refresh rate is much higher than other systems. For example, it is beneficial to adopt MMIC and HMIC, which can improve the broadband performance of antennas, realize the multi-functional antenna array of spectrum sharing, and provide hardware for the realization of integrated and standardized electronic information systems (including radar, communication and data link, etc.) Conditions; for example, it is conducive to combining with microelectronics, optoelectronics, and optical fiber communication technologies to achieve high-density integrated optically controlled phased array antennas and antenna systems...
In a word, AESA is a revolutionary system change in the radar field. Whether a country has mastered the R&D and manufacturing capabilities of AESA radar is a sign of whether a country can enter the Bluestar first camp in the radar field!
Here, let us once again observe a moment of silence for the Maozi family, who has distorted the science and technology tree. Raksha, who has not yet completed the manufacturing process of T/R components, has been excluded forever from the Bluestar’s first camp in the radar field. Weihao’s military industry will inevitably decline. The day when the Soviet Russian heritage is completely exhausted comes, that is, when the blood of the fighting nations is cooling down, the future world will not have the electronics industry as the basis and information. Ability to support, all thermal weapons are paper tigers...
By the way, the reason why T/R components need to use the price at least 20 times more expensive than silicon materials, so-called "noble among semiconductor materials" gallium arsenide rather than the already very mature silicon-based materials, is because gallium arsenide is more expensive than Silicon materials can withstand higher power and higher frequencies, and can also work in a larger temperature range. These advantages are very important indicators for radar, and Tan Zhenhua needs to find a non-ferrous metal research institute. The root cause of the gallium arsenide single crystal material was spent all the money.
So you see, if you want to overtake a car in a corner, you have to start with the most basic materials, tools, and equipment, lay a solid foundation, and solve all problems step by step. Only then can you achieve the ultimate success. It’s not called
overtaking
at all if you have core components with technical intellectual property rights. What's more, there are some things that you can’t buy even if you have a lot of money.
As for now, the T/R component in hand clearly tells Tan Zhenhua that the foundation is already there. Next, will China's AESA be far?
Chief Engineer Zhang of the 4014 Institute once said, "With traveling wave tubes, we can build radar." From today, Tan Zhenhua believes that this sentence should be changed to: "With T/R, we can build radar!"
China’s first T/R module successfully developed by 4055 is just a message circulated among a small range of professionals. This kind of matter is originally highly confidential and cannot be seen in the newspapers. The general public has no channels to know, or among them Most of them don't care about this, but for some people, this is the long-awaited major scientific research result.
For example, Wang Xiaosha, who has been elected an academician of the Chinese Academy of Engineering and transferred to the capital and is the chief engineer of the China Electric Power Research Institute, rushed to Ningdu as soon as he learned of the news, and at this time, in his heart, he had begun to outline a top Blueprint of a big airplane with a big plate.
For example, Tan Zhenhua’s teacher and neighbor, Ben Fang, has begun to wonder how to make this T/R component smaller and smaller, coupled with a high-speed DSP computing chip and a new signal processing algorithm adapted to a higher data refresh rate. The antenna array formed by the parallel components is stuffed into the fighter's nose, which is not rich in space.
For example, Zhu Yingfu, the director of the Hanyang Ship Research Institute, immediately overturned the new-generation shipborne radar plan that had completed the procurement implementation plan before. Together with the Chinese Navy, he brazenly tore up the new-generation destroyer radar procurement contract signed with a certain factory. I took the first train ticket and went straight to Ningdu-in our business, who doesn't have a problem with the new and the old?